Snail darter (Percina tanasi) fish species and information / pictures of Snail darter - Percina tanasi

Snail darter (Percina tanasi) fish species information

Scientific Name
Percina tanasi

Common Name
Snail darter

Biology
Occurs in gravel and sand runs of medium-sized rivers (Ref. 5723, 10294); also found in creeks (Ref. 10294). Feeds on small pleurocerid river snails, mostly Leptoxis and Lithasia, as well as some physid snails and limpets; also consumes caddisfly larvae (Glossosoma, Hydropsyche, Brachycentrus), midge and blackfly larvae, and a few mayfly nymphs (Ref. 10294).

Classification

Classified By
Etnier, 1976
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Perches (Percidae)

Distribution

Region
North America
Distribution
North America: upper Tennessee River drainage of eastern Tennessee and northern Georgia in the USA.
Range
36°N - 34°N

Environment

Climate
Temperate
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
benthopelagic
Environment
Freshwater; benthopelagic
Trophic Level
3.35 s.e. 0.43 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
False
Occurs in Brackish water
False
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
9.0 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Unknown
Vulnerability
Low vulnerability (20 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (tmax=4; Fec=100-600)
Threat To Humans
  Harmless
IUCN Red List Status
  Vulnerable (VU) (D2)